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Two one liter beakers, 12 cm in diameter are connected via their bottoms by 10 cm of Tygon tubing 1 mm in diameter. The bottoms of the beakers are at the same level. The one on the left is filled with 1 L of water at 20 C with a coefficient of viscosity of 1 cP. How long will it take for the beaker on the left to have 60% of its original level?
what percentage of the acid is not ionized? (Assume all H in solution came from the ionization of HA.)
identities of the components in a mixture by Gas chromatography may be determined by the technique called "spiking".
Construct a graph of the Maxewell distribution of speeds (equation 20.4 in Atkins Book) for Cl2 at 100 K and 298 K using excel or mathematica.
.799 g sample of an unknown substance has dissolved in 15.6 g of benzene. The freezing point of the solution was 4.075 C. The freezing point of pure benzene is 5.455 C. For benzene, Kf= 5.065 C/m, and Kb=2.61 C/m. Assume that the solute is a nonel..
Determine the total number of double bonds and/or rings for a hydrocarbon
The calorimeter and water have a combined heat capacity of 43.50 kJ/K. Calculate the heat of formation of ammonia in kJ/mol
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg.
The initial concentration of lead(II)nitrate is 0.250M. and we used 1.00 ml. the lead(II)nitrate was titrated with 7.96 ml of 0.0500M of potassium iodide.
Calculate the molar mass of the unknown. Assume that the molal freezing point depression constant of water is 1.86°C•kg/mol and that the freezing point of water is 0.00°C. Please show all calculations in solving the problem
The complex ion Co(H2O)6(2+)(aq) is pink when placed in solution. Addition of chlorine ions creates an equilibrium with CoCl6(4-) in the solution, which is blue in color.
Draw (2R,3S)-2-bromo-3-phenylpentane in the conformation from which it is most likely to undergo E2 elimination to give 3-phenyl-2-pentene.
Over what (approximate) wavelength range is the emission of light from excited sodium atoms most sensitive to the eye
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